Lake Mamry

Mamry (German: Mauersee, Lithuanian: Mauras) is a lake in the Masurian Lake District of Poland's Warmia-Mazury Province. It is the second largest lake in Poland, with an area of 104 square kilometres (40 sq mi). The lake's maximum depth is 44 metres (144 ft) with an average depth of 11 metres (36 ft). It comprises six connected lakes: Mamry, Kirsajty, Kisajno, Dargin, Święcajty and Dobskie. Mamry features 33 islands, totaling 213 hectares (530 acres), some of which are ornithological reserves. Lake Mamry is a popular tourist destination. It is connected to the Pregolya and the Baltic Sea by the abandoned Masurian Canal. The largest town on the lake shore is Giżycko. The lake bottom is diversified, with numerous depressions and shallows, while the northern part is considerably deeper, and the bottom is overgrown with raised vegetation and underwater meadows with horsetails. The shores of the lake are mostly low and marshy, partly overgrown with forest.